I've been using my M3 ID for a few months now. It's my first 3D printer and I love it!

I recently have had some layer shifting that I'm not sure how to fix. I believe I have some slipping, but I'm not sure where. It looks like it is in the Y axis.

Below are some pictures. One is more drastic than the other. After the piece on the wood I put oil on the rails and decreased the speed from 3500mm/min to 2500mm/min. The fact that I have very little shifting after lowering the speed leads me to believe that something is slipping.

Here is what I have done so far:

Lowered Speed (helped somewhat)

Checked G Code file with simulator to verify the part isn't confusing the slicer

Checked set screws. They seemed pretty tight, and they are still catching the recessed section of the shaft

Changed settings such as extrusion multiplier and layer height. I was thinking they might have caused the nozzle to drag too much. It did not have an effect on the shifting.

I have seen mention of using "Z Hop". I will try this when I get home this evening, but I think the shifting is so sever in some cases that it's too much to be caused by nozzle drag.